I uploaded this video to YouTube on August 28, 2016. I'm adding this video in its original MP4 format to Archive.org for archival purposes.
Bally BASIC Demo
By Bally Mfg. Corp.
This cartridge has a small (about 6") chain attached to the top-front. This cartridge was made in limited quantities and only distributed to dealers, as was also done with the Dealer Demo cartridge. The first 4K is a "crippled" version of Bally BASIC that doesn't have access to the keypad or hand controllers- except #3: all the inputs are disabled. The remaining 4K of the cartridge is a program written in BASIC.
This video shows the complete demonstration running before it repeats.
This Bally BASIC Demo footage was recorded with the Hauppauge HD PVR (Model 1212) as a m2ts file and a constant bitrate and then converted to an MP4 file.